diff --git a/src/core.py b/src/core.py
index 2bce73db..7b3bcb62 100644
--- a/src/core.py
+++ b/src/core.py
@@ -1398,6 +1398,11 @@ class Core(object):
                 self.focus_tab_named(roster_row.get_jid().full)
         self.refresh_window()
 
+    def remove_timed_event(self, event):
+        if event and event in self.timed_events:
+            log.debug('removing event')
+            self.timed_events.remove(event)
+
     def add_timed_event(self, event):
         self.timed_events.add(event)
 
diff --git a/src/tabs.py b/src/tabs.py
index 03fa0856..5f11e1f0 100644
--- a/src/tabs.py
+++ b/src/tabs.py
@@ -336,7 +336,7 @@ class ChatTab(Tab):
         if self.timed_event_paused:
             event = self.timed_event_paused()
             if event:
-                self.core.timed_events.remove(event)
+                self.core.remove_timed_event(event)
                 del event
         self.timed_event_paused = None
 
@@ -619,6 +619,7 @@ class MucTab(ChatTab):
             msg['xhtml_im'] = xhtml.poezio_colors_to_html(line)
         if config.get('send_chat_states', 'true') == 'true' and self.remote_wants_chatstates is not False:
             msg['chat_state'] = 'active'
+        self.cancel_paused_delay()
         msg.send()
 
     def command_ignore(self, arg):
@@ -986,6 +987,7 @@ class PrivateTab(ChatTab):
         msg.send()
         self.core.add_message_to_text_buffer(self.get_room(), line, None, self.core.own_nick)
         logger.log_message(JID(self.get_name()).bare, self.core.own_nick, line)
+        self.cancel_paused_delay()
         self.text_win.refresh(self._room)
         self.input.refresh()
 
@@ -1421,6 +1423,7 @@ class ConversationTab(ChatTab):
         msg.send()
         self.core.add_message_to_text_buffer(self.get_room(), line, None, self.core.own_nick)
         logger.log_message(JID(self.get_name()).bare, self.core.own_nick, line)
+        self.cancel_paused_delay()
         self.text_win.refresh(self._room)
         self.input.refresh()
 
diff --git a/src/windows.py b/src/windows.py
index 25aaeb06..f68162ae 100644
--- a/src/windows.py
+++ b/src/windows.py
@@ -1340,7 +1340,7 @@ class RosterWin(Win):
                 if y-self.start_pos+1 == self.height:
                     break
             line = ' '*self.width
-            while y <= self.height:
+            while y < self.height:
                 self.addstr(y, 0, line)
                 y += 1
             if self.start_pos > 1: